Fireproof window.



No. 874,501. u PATENTED DEC. 24, 1907.

, M. F. HAMSLEY.

PIREPROOP WINDOW APPLICATION FILED AUG. 13, 1907.

2 SHEETS-EEEET 1.

Wits 000% No; 74,501; H PATENTED DEC. 24, 1907.

' M. F. HAMSLBY.

FIRBPROOF WiNDOW.

APPLIOATION FILED AUG.13, 1907.

2 SHEETS-SHEET 2- UNITED TA ES PAT NT OFFICE- MILLARD Fr AMsLEY, OFBROOKLYN, NEW YORK.

" rmn'rnoor wnmow.

To all whom it may concern:

Be it known that I, MI LARD FfHAM sLnY,

of Brooklyn, in the county of Kings and State of. New York, haveinvented a certain new and useful Improvement in Fireproof 'Windows andI do hereby declare the followingto be a full, clear, and exactdescription of the same, referencebeing had to the accorn panyingdrawings, forming apart of thisspecification, and to the figuresandletters of reference marked thereon.

i This invention relates toimprovements in metal fireproof windows ofthat type wherein the several parts are usually formed of sheet metal,the objects of the invention being to provide a window the partsof whichmay be shaped up in dies and when assembled will resist to the maximumany tendency to separate or warp under the influence of heat or suddenand extreme changes in temperature and which will also offer the maximumrebinding or indentation at salient points.

Further objects of the invention are to provide a window having tight orweatherproof joints both between the relatively away through a windowembodying the presfixed parts and between the relatively mov- 'ablemembers constituting the whole structure.

Referring to the'accompanying drawings: Figure 1 is a vertical section,partly broken ent improvements. Fig; 2 Is a horizontal section, on line2-2, but on a somewhatv larger scale and with intermediate parts brokenaway, the plane of the section being through the upper half of the sash.Fig. 3

is a similar section, line 33, through one half of the window. Fig. 4 isa detail sec tional perspective of a part of the casing and upper partof a sash. Fig. 5 is a detail vertical section through the sill' andsashin proximity to the muntin in one sash, part of the latter alsobeing in section. Fig. 6 is a perspective view of one corner of a sash,the

parts being separated and broken away to show the manner of assembling.Fig. 7 is a vertical section through the sill and base of a mull'ion ormunnion. Fig. 8 is adetail horizontal section showing the preferredmeans for supporting thetransom bar. Fig. 9 is a detail of the bottomrail of the sash.

Like letters of reference in the several figures-indicate the sameparts. v As shown in the drawings, the frame for the window is made upof a sill A, jambs Patented Dec. 24, 1907;

B head or lintel 0, center p'ostor mullion D andtransom bar E', but itwillbe understood that any-number of posts or mullions may be employed,or none at all, depending upon the width of the window, so too, whileupper and lower sash openings are formed by. the transom bar, the saidbarmay be omitted, particularly if the windowis short vertically, andonly a single sash is desired.

The sill A is formed up of sheet metal by substantially straightlongitudinal folds and bends,-thu s 0n the inner side of the window thesheet metal is folded closely around an angle iron core bar A, so as toembrace the outer face and both edges of theiron. Where the sheetmetalfolds in under. the upper or outer edge of the angle iron it formsa recess a into which the edge of the sash passes to form a tight jointas will be p'resentl exlained. From the recess a the metal ormwardlyinclined riser a and at the outer edge the metal extends downwardly inthe form of a skirt a, the table a and skirt a overlying an angle bar Athe flanges of which preferably form an obtuse angle as shownclearly inFigss'l, 5 and 8. The edges of the sheet metal forming the sill areclamped tightly around the angle irons A and A respec- Y tively, thusthe salient edges of the sill are strengthened sufliciently when backedby the cement setting to withstand any stress .short of such as wouldcompletely destroy the Window.

-- The three exposed faces of the jambs B are i preferably formed of twopieces of; sheet metal umted on the inside of thecasing by a folded seamat b intowhich seam one edge of a weather strip or channel iece F maybe. folded throughout the lower alf of the sash, as shown in Flg. 3. Theinner and outer faces of the jambs are madewith relatively deep verticalchannels G, G respectively, While the intermediate face G? issubstantially fiat and at right angles to the plane ofthe sash. Theformation of the channels G and G in figuration which'is adapted toreceive and retain a rectangular core bar H one face ofwhiclrfitssmoothly against the inside of. the intermediate face G of thejamb and the a the faces of the jainb gives an internal conedges ofwhich fit into and support the edge or projections forming the outersides of the said channels, thus the sheet metal of the jambs is firmlybacked at salient edges to resist deformation through any cause.

The head or lintel C, Fig. 1, has its outer, inner and intermediatesldes formed of a single piece of metal, the intermediate face beingformed with a channel 0 for the reception of the edge of the sash, saidchannel opening inward so as to be entered by the outer edge of the toprail of the sash as it moves outwardly to closed position. At the innerside of the channel 0 the face inclines in a plane substantiallyparallel with the water tables of the-sill and transom bar whereby asash pivoted on a horizontal axis will close tightly at top and bottomall as shown clearly in Fig. 1. V

Where a wide window or one requiring more than one sash side by side isdesired, the casing is made of suflicient width to admit one or moremullions or vertical intermediate parts each intermediate face of whichwill conform to that of the jambs. Each mullion is made up preferably oftwo pieces seamed together at d, (I, such seams corresponding totheseams b in the jambs. The mullions also have channels D D correspondingto the channels G G in the jambs with internal core bars D forming thebacking for the salient edges. At top and bottom where the mullions jointhe sill and lintel the outer and inner faces are preferably extendedand doubled back around the edges of the lintel and sill, as shownclearly in Fig. 7, whereby the mullions will be held firmly in position,but it will be understood that additional fastening means of usual orpreferred character may also be employed when desired.

In fireproof windows of the character to which the present inventionrelates it is devertical sections by transom bars.

sirable to make use of sash pivoted on horizontal axes so as to tend toclose automatically if released, and it is also desirable that the sashshould be of restricted height and hence it is usual to divide thecasing inZo s shown in the accompanying drawings, particularly in Fig.1, a transom bar E is employed. This transom bar is preferably made upof two pieces of sheet metal seamed together at e e, the seams formingthe outer walls of recesses into which the edges of the top and, bottomsash fit when closed. The

'top and bottom faces, of the transom bar conform essentially to theform of the cenjambs and mullions.

tral parts of the sill and lintel so as to fit the edge faces of thesashaccurately and with an 7 outward inclination to prevent the entryofwater. A flat or rectangular core piece E forms a-filler for the transomand gives the same great rigidity and strength in addition to affordinga ready means whereby the ends of the bar may be firmly fastened to,the

The preferred connection is shown in detail in Fig. 8, where it will beseen that dowels ortenons E connect the ends of the rigid core E withthe cores H bed the casing in cement which may be pouredor otherwiseplaced in the cavities between the wall and casing, as shown at 'i t. Inmost instances it is desirable to leave the jambs and lintel hollow andfor this purpose recessed fillers K are seamed to the edges of the jambsand-lintels, the recesses in said plates, as shown in Fig. 2, serving toreceive cement to form keys of greater size for retaining the casingfirmly against displacement.

The sash, which is of special design for cooperation with the casingdescribed, but which embodies features common to both casing and sash,is formed with sheet metal top, bottom and side rails, wrapped or foldedabout core pieces for uniting the parts and giving additional rigidity.

The core pieces M of the sash are of substantially rectangular section,one being provided for each rail and with one end M bent up at rightangles to enter the adjoining rail as is well illustrated in Fig.6. Thesheet metal N is bent closely around the core pieces, the edges at N onone side of the core piece being bent out at an angle to formthe channelfor the lass between them. Between the parts forming the side walls ofthe glass channel a U-shaped channel iron 0 is located and held in placeby the inturned extreme edges N of the sheet metal covering, thus notonly are the edges of the covering prevented from spreading, but thewalls of the glass channel are made very rigid.

The bottom rail of the sash should have an apron to overlie the riser aof the sill and for this purpose the sheet metal cover of the bottomrail is extended at one edge of the core and bent downwardly as shown atP, in Fig. 9. In this figure and Figs. land 5, it will also be seen thatthis bottom rail is inclined to the plane of the sash and consequentlythe walls of the glass channel are inclmed to the plane of the core, oneside of the channel being made somewhat longer than the other to bringthe edges up to the same level. At the end wherethe core is bent up atright angles one edge is cut away as at P to permit said end to enterthe side rail correctly.

The preferred construction of side rail for the sash is shown in Fig.4;, wherein it. will be seen that the sheet metal cover is in two partsseamed or with their edges folded together at extends from the pivotalcenter to the top or I bottom of the sash, thus as shown, it extendstothe'top of the sash and is located on the innerside. The joint betweenthe other half ,of the sash and casing is bridged by the strip beforereferred to and shown particularly m Fig. 3. I

To insert the glass S, its upper edge ispassed up into the channel atthe top of the sash, which channel is usually made somewhat deeper thanat the sides and bottom,v

(Figs. 2, 3 and 5) is composed of two parts,

the part on the outside embodying a sheet metal strip or bar having sideflanges T with the edges turned back'to rest against the glass and acentral channel T in which a solid core bar T is permanently mounted andheld by rlvets or similar fastenings. V

The part of the muntin on the inside of the window is of somewhatsimilar formation save that the flanges t are bent closely arounda wideflat core t and the edges 25 of the strip are turned at right angles tothe core so as to pass in between the adjacent edges of the glass.Screws U passing through the inner half of the muntin and screwing intothe'core bar T serve to clamp the two parts firmly together. At thebottom of the sash the central part ofthe outer half of the muntinpreferably extends down over thewalls of the glass channel as shown at Uin 40 Flg. 5, while the inner half is,cut away at a somewhat higherpoint to avoid contact with the sill and the outer face of the channelis bent in as at U in said Fig. 5 to give a finished appearance.

The sash are mounted so as to swing inwardly atthe top and outwardly atthe bottom'and for this purpose hinges are provided of such form thatthey maybe readilysecured to the sash and easing or mulli'on.

The upper leaves V of the hinges are preferablyad ustabIy secured to theside rails of' P the sash by bolts 11 passing through slots in thehingeswhilethe upper and lower leaves.

- embodying bar angle iron cores-1n the lnner of the hinges are securedtogether by pintle bolts V said bolts being adapted to pass way throughthe mullion'br casingand to be held in place by cotter. ins or similarfastenings at the ends. Said" ower leaves of the hinges are adapted tofit in the channels G (see Figs.

6b 2 and 3) and in addition may be securedby rivets or bolts as usual.One hinge of each alr is provided with an extension W on each- 1 eaf toone of which a rod W is loosely secured, and adapted to be adj-ustably'clamped to the other by a thumb nut and screwW whereby the position ofthe sash may be controlled.

The pivotal axis of the sash is so located that if entirely free, thewindows will automatically close in order to automatically freethe sashshould fire occur in the'vicinity of the window, a washer X, fusible atlow temperature, is interposed between the thumb nut and rod W. If thewasher melts the rod is instantly freed from the clamp and the windowcloses. In both the mullion and jambs small openings such as indicatedat 7 in Fig. '1, are preferably formed at top and bottom to affordventilation and drainage.

When closed as shownin Fig. 2 it will be .noted that the outer edgesof-the. sash are substantially flush with the edges of the walls of thechannels and as a result storm water will be blown into the channels,rather than between the sash and casing, the channels forming, ineffect, ducts for protecting the parting openin and conducting all stormwater down'away from the sash. Having thus described my invention, whatI- claim as new and desire to secure by Letters Patent, is:

1. A fireproof window embodying a casing formed of sheet metal andinternal longitudinal core pieces of flat bar metal along the salientedges held in place by the folds and bends of the sheet metal passingaround both edges of the bar.

2. A fireproof windowembodying a casing.

formed of sheet metal having channels in its outer and inner faces andan internal core of bar metal held by the walls of said channels to forma backing for the intermediate face .of the casing.

3. A fireproof window, embodying a cas I ing, formed of sheet 'metaland-including a sheet metal sill havin an internal angle bar core aboutboth the edges of which the sheet metal is folded to retain the core inposition.

4:. In a fireproof window a sheet metal sill I 'embodyin an internalcore of bar angle iron forming a acking for two of the faces of thesill.

and outer salient edges, the sheet metal be ing folded to retain saidcores in position.

7 In a fireproof window a sheet metal sill embodying a bar angle ironcore in the inner 5; In a fireproof window, a sheet metal sill salientedge,the sheet metal being folded around the outer edge of the core toforma channel beneath the edge of said core and to retain the core inlposition to "support the fold.

of the sheet meta 8. In a sheet metal fire proof window a sheet metalmullion having oppositely distion of the mullion between the channels.

10. In a fireproof window, the combination with the metal casing of ametal sash frame embodying a flat solid metal core and a sheet metalenvelop extending around and having its edges bent to project at anangle fromione of the flat faces of the core to form a channel for thepanes of glass.

11. In a fireproof window, the combina-' tion with the metal casing, ofthe metal sash frame embodying a metal core and U-shaped channel ironand a sheet metal envelop for said core having its edges bent outwardlyfrom the core andembracing the flanges of the channel iron to form theglass channel.

12. In a fireproof window, the combination with the metal casingembodying bar metal cores and sheet metal envelops in which said coresare held, of a transom bar embodying a bar metal core connected at theends with the cores in the casing and a sheet metal envelop for saidcore having channels for the sash; substantially as dBSCIlbGd.

13. In a fireproof window, the combination with the metal casing andmetal sash pivotally mounted therein to close automatically, of aconnector for holding said sash open embodying a rod and a screw clamptherefor having a fusible metal washer interposed in the clamping partswhereby the rod and sash will be released whenthe washer melts.

14. In a fireproof window, the combination with the metal casing andmetal sash, of a hinge connecting the sash and casing, projections onthe leaves of the hinge, a rod loosely connected with one of saidprojections, and a clamp for said rod on the other projection embodyinga fusible metal washer in the clamping parts whereby the rod and sashwill be released when the washer melts.

MILL'ARD F. HAMSLEY.

Witnesses H. BENJAMIN, D. L. THOMPSON.

